{
  "ptid_time": "941_S_4292_2019-07-24",
  "img_path": "/data/qiuhui/data/adni/images/941_S_4292/2019-07-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,043 mm³, 11.6% below the reference mean. With a Z-score of -0.28 (39.0th percentile), this represents normal volume ; hippocampal volume measures 7,177 mm³, 5.1% below the reference mean. With a Z-score of -0.49 (31.1th percentile), this represents normal volume ; whole brain volume measures 999,407 mm³, 7.4% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,434 mm³, 8.1% above the reference mean. With a Z-score of 0.55 (70.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,462 mm³, 7.3% below the reference mean. With a Z-score of -0.62 (26.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,542 mm³, 3.7% below the reference mean. With a Z-score of -0.34 (36.9th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Male. Education: 15 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:38:01.190348"
}